Intake-manifold shield



Dec. 9, 1924. 1,518,669 M. B. NASH INTAKE MANIFOLD SHIELD Filed March24, 1921 Patented Dec. 9, 1924.

UNITED STATES MAURICE B. NASH, OF POINT, MISSISSIPPI.

INTAKE-MANIFOLD SHIELD.

Application filed March 24, 1821. Serial No. 455,291.

T 0 all whom it may concern:

Be it known that MAURICE l3. NASH, a citi- Zen of the UnitedStates,'residing at lVest Point, in the county of Clay and State ofMississippi, has invented certain new and useful Improvements inIntake-Manifold Shields, of which the following is a specification.

This invention relates to improvements in intake manifold shields foruse in connection with internal combustion engines, and

the primary object of the invention is to fur-- nish a shield which maybe quickly attached to or detached from the engine without the use oftools and which when attached will cover a large portion of the intakemanifold and exhaust pipe and will permit the utilization of the heatrising from the exhaust pipe for heating the intake manifold. 7

Another object of the invention is to furnish a device of this characterwith anapron extension which will extend from a point adjacent the inletports of the enginedown to a point beneath the outlet of the carbureter,so that the entire front portion of the intake manifold will beprotected from cold air during use of the engine in cold weather.

A further object of the invention is to furnish an improved shield ofsimple and inexpensive construction.

With the foregoing objects outlined and with other objects in view,which will appear as the description proceeds, the invention consists inthe novel features hereinafter described in detail, illustrated in theaccompanying drawing, and more particularly pointed out in the appendedclaims.

Referring to the drawing:

Figure 1 is a side View of an automobile engine of the Fordtype with myimproved g shield in position.

Fig. 2 is an enlarged sectional view of the shield taken on line 2-2 ofFig. 1.

Fig. 3 is a similar sectional view taken on line 3-3 of Fig. 1.

Fig. 4 is a perspective view of the device.

Fig. 5 is a plan view of the blank from which the body of the shield ismanufactured.

In the drawing, 1 designates an engine having an exhaust pipe 2 and anintake manifold pipe 3, the last mentioned pipe being arranged below theexhaust pipe and being provided with a vertical depending extension 4which is connected to the carbureter 5. In the Ford type engine theexhaust and intake pipes are connected to the engine cylinders by meansof screws or bolts 6 which engage clamp plates or spiders 7 that bearupon said pipes. In attaching my improved shield to the engine I proposeto utilize the clamp plates or spiders 7 in attaching my shield.

The improved shield as best shown in Fig. 5 includes a front ortion 8havin a bottom flap 9 which is bent substantially at right angles to thefront portion 8 and is provided with, a depending apron 10. The bodyportion 8 is provided with end flaps 11 and 12, the latter beingprovided with side wings 13 which are bent over andengage the top 14 andbottom 9 of the shield. The rear flap 11 is bent at an acute anglerelatively to the front portion 8 as best shown in Fig. 2 so that heatedair within the shield, in escaping from the rear end of the shield willfunction to heat the major portion of the manifold 3. It will be notedthat the top portion 14 is provided with a triangularshaped flap 15which is bent downwardly to engage the rear flap 11.

This shield as best shown in Figure 1 covers the entire front half (oreven two thirds or three quarters) of the intake and exhaust pipes andthe heat created by the exhaust pipe will travel rearwardly to heat thein take manifold, a certain portion of the heated air travelingdownwardly and heating the leg 4 of the intake manifold. This descendingof the heated air will be facilitated by the apron 10 and the rear flap11. It will be noted that the apron 10 shields the leg 4 of themanifold.

In order to attach the shield to the en- 'ine, I have provided theshield with a plurality of hooks 16 which extend through the frontportion of the shield and through the leaf-spring 17. The outer ends ofthe hooks 16 are furnished with finger engaging Wings 18 to be utilizedin turning the hooks. When the shield is placed over the front portionof the exhaust pipe and intake manifold, the inner ends 19 of the hooks16 are turned into aligned relation and are placed over the front clampplates or spiders 7. Then the wings 18 may be turned to place the innerends 19 in parallel relation so that these inner ends will hook over thespiders 7. The leaf-spring 17 which is fixed at 20 to the front portionof the shield will then force the members 18 away from the front portionof the shield and cause the hooks to clamp the shield in position. 7

The shield may be quickly removed by simply turning the inner ends ofthe hooks 19 into alignment and then withdrawing the shield from theengine.

From the foregoing I believe that the construction and operation of thedevice will be readily understood by those skilled in the art and I amaware that various changes may be made in the construction shown withoutdeparting from the spirit of the in vention as expressed in thefollowing claims.

What -I claim and desire to secure by Letare Patent is z 1. A shield,for use with the exhaust pipe and intake manifold of an internalcombustion engine, consisting of a one-piece sheet :metal member havinga vertical end Wall adapted to be arranged in front of the front ends ofsaid pipe and manifold, a vertical front wall arranged at an angle tothe end wall and of a length substantially half the length of themanifold, adapted to extend over the exposed sides of the front portionsonly of's'aid pipe and manifold and provided with a rearwardly andinwardly extending vertical flap adapted to direct heated air from theshield along that portion of the manifold which is not covered by theshield, horizontal top and bottom walls integral with the front wall andadapted to be arranged aboveand below said pipe and manifold, and asubstantially flat vertically disposed apron integral with said bottomwall- 'gageable with a portion of an engine for securing the shield inplace without detaching any part of the engine.

3-. The combination with an internal combustion engine having an exhaustpipe and an intake manifold and means including spiders for connectingthe pipe and manifold in position, of a shield arranged over a portionof said pipe and manifold, a plurality of hooks adapted to detachablyengage said spiders and having shanks rotatably mounted in said shield,heads provided on said shanks, and a bow-spring having its centralportion secured to said shield and its ends engaging said heads foryieldingly forcing said heads away from said shield and'holding saidhooks in engagement with the spider In testimony whereof I affi'x mysignature.

MAURICE B. NASH.

